129704489190 has 112 divisors (see below), whose sum is σ = 350862653376. Its totient is φ = 34506777600.

The previous prime is 129704489153. The next prime is 129704489221. The reversal of 129704489190 is 91984407921.

129704489190 is a `hidden beast` number, since 1 + 2 + 9 + 7 + 0 + 448 + 9 + 190 = 666.

It is a super-2 number, since 2×129704489190² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 3121350 + ... + 3162630.

Almost surely, 2^129704489190 is an apocalyptic number.

129704489190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 129704489190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175431326688).

129704489190 is an abundant number, since it is smaller than the sum of its proper divisors (221158164186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129704489190 is an equidigital number, since it uses as much as digits as its factorization.

129704489190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41737 (or 41722 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 129704489190 in words is "one hundred twenty-nine billion, seven hundred four million, four hundred eighty-nine thousand, one hundred ninety".